How to get nginx version by shell script?

Server NGINX
#1

i have try to get nginx version,use:
[email protected]:~# nv=/usr/local/nginx/sbin -v
[email protected]:~# echo $nv

but echo $nv was blank.
i also have try php or other program was work.

#2

On Mon, Feb 14, 2011 at 4:25 PM, licess [email protected] wrote:

i have try to get nginx version,use:
[email protected]:~# nv=/usr/local/nginx/sbin -v
[email protected]:~# echo $nv

perhaps you meant /usr/local/sbin/nginx -v?

Also the output is directed to stderr (don’t ask me why) so you need
2>&1

nv=/usr/local/sbin/nginx -v 2>&1
echo $nv